Two-Dimensional Metal Organic Framework Nanosheets as Bifunctional Catalyst for Electrochemical and Photoelectrochemical Water Oxidation

Chang Liu; Xiaochen Shen; Grayson Johnson; Yulu Zhang; Changlin Zhang; Jiafu Chen; Lingyan Li; Colton Sheehan; Zhenmeng Peng; Sen Zhang

doi:10.3389/fchem.2020.604239

Two-Dimensional Metal Organic Framework Nanosheets as Bifunctional Catalyst for Electrochemical and Photoelectrochemical Water Oxidation

Chang Liu
, Xiaochen Shen
, Grayson Johnson
, Yulu Zhang
, Changlin Zhang
, Jiafu Chen
, Lingyan Li
, Colton Sheehan
, Zhenmeng Peng
, Sen Zhang

Surface Chemistry & Catalysis Group

Research output: Contribution to journal › Article › peer-review

18 Scopus citations

Abstract

Electrochemical (EC) and photoelectrochemical (PEC) water splitting represent promising strategies for renewable energy conversion and fuel production and require design of efficient catalysts for the oxygen evolution reaction (OER). Herein, we report the synthesis of two-dimensional (2D) Co-based metal organic framework (Co-MOF) nanosheets and their bifunctional catalytic properties for both EC and PEC OER. Benefiting from the large surface area and abundant isolated metal active sites, the Co-MOF nanosheets exhibited excellent OER activity and stability. The efficient electron–hole generation and separation of the nanosheets, owing to dimensional confinement, contributed to an improved visible light response in PEC OER. This study presents a new strategy to design EC/PEC bifunctional catalyst utilizing unique structural and electronic features of 2D MOF.

Original language	English
Article number	604239
Journal	Frontiers in Chemistry
Volume	8
DOIs	https://doi.org/10.3389/fchem.2020.604239
State	Published - Nov 4 2020

Funding

This work was financially supported by the University of Akron fund (ZP) and the University of Virginia Faculty Start-up fund (SZ). TEM data were obtained at the (cryo) TEM facility at the Liquid Crystal Institute, Kent State University, supported by the Ohio Research Scholars Program Research Cluster on Surfaces in Advanced Materials.

Keywords

bifunctional catalyst
metal organic framework
nanosheet
oxygen evolution reaction
photoelectrochemical water oxidation

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title = "Two-Dimensional Metal Organic Framework Nanosheets as Bifunctional Catalyst for Electrochemical and Photoelectrochemical Water Oxidation",

abstract = "Electrochemical (EC) and photoelectrochemical (PEC) water splitting represent promising strategies for renewable energy conversion and fuel production and require design of efficient catalysts for the oxygen evolution reaction (OER). Herein, we report the synthesis of two-dimensional (2D) Co-based metal organic framework (Co-MOF) nanosheets and their bifunctional catalytic properties for both EC and PEC OER. Benefiting from the large surface area and abundant isolated metal active sites, the Co-MOF nanosheets exhibited excellent OER activity and stability. The efficient electron–hole generation and separation of the nanosheets, owing to dimensional confinement, contributed to an improved visible light response in PEC OER. This study presents a new strategy to design EC/PEC bifunctional catalyst utilizing unique structural and electronic features of 2D MOF.",

keywords = "bifunctional catalyst, metal organic framework, nanosheet, oxygen evolution reaction, photoelectrochemical water oxidation",

author = "Chang Liu and Xiaochen Shen and Grayson Johnson and Yulu Zhang and Changlin Zhang and Jiafu Chen and Lingyan Li and Colton Sheehan and Zhenmeng Peng and Sen Zhang",

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doi = "10.3389/fchem.2020.604239",

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T1 - Two-Dimensional Metal Organic Framework Nanosheets as Bifunctional Catalyst for Electrochemical and Photoelectrochemical Water Oxidation

AU - Liu, Chang

AU - Shen, Xiaochen

AU - Johnson, Grayson

AU - Zhang, Yulu

AU - Zhang, Changlin

AU - Chen, Jiafu

AU - Li, Lingyan

AU - Sheehan, Colton

AU - Peng, Zhenmeng

AU - Zhang, Sen

PY - 2020/11/4

Y1 - 2020/11/4

N2 - Electrochemical (EC) and photoelectrochemical (PEC) water splitting represent promising strategies for renewable energy conversion and fuel production and require design of efficient catalysts for the oxygen evolution reaction (OER). Herein, we report the synthesis of two-dimensional (2D) Co-based metal organic framework (Co-MOF) nanosheets and their bifunctional catalytic properties for both EC and PEC OER. Benefiting from the large surface area and abundant isolated metal active sites, the Co-MOF nanosheets exhibited excellent OER activity and stability. The efficient electron–hole generation and separation of the nanosheets, owing to dimensional confinement, contributed to an improved visible light response in PEC OER. This study presents a new strategy to design EC/PEC bifunctional catalyst utilizing unique structural and electronic features of 2D MOF.

AB - Electrochemical (EC) and photoelectrochemical (PEC) water splitting represent promising strategies for renewable energy conversion and fuel production and require design of efficient catalysts for the oxygen evolution reaction (OER). Herein, we report the synthesis of two-dimensional (2D) Co-based metal organic framework (Co-MOF) nanosheets and their bifunctional catalytic properties for both EC and PEC OER. Benefiting from the large surface area and abundant isolated metal active sites, the Co-MOF nanosheets exhibited excellent OER activity and stability. The efficient electron–hole generation and separation of the nanosheets, owing to dimensional confinement, contributed to an improved visible light response in PEC OER. This study presents a new strategy to design EC/PEC bifunctional catalyst utilizing unique structural and electronic features of 2D MOF.

KW - bifunctional catalyst

KW - metal organic framework

KW - nanosheet

KW - oxygen evolution reaction

KW - photoelectrochemical water oxidation

UR - https://www.scopus.com/pages/publications/85096159608

U2 - 10.3389/fchem.2020.604239

DO - 10.3389/fchem.2020.604239

M3 - Article

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SN - 2296-2646

VL - 8

JO - Frontiers in Chemistry

JF - Frontiers in Chemistry

M1 - 604239

ER -

Two-Dimensional Metal Organic Framework Nanosheets as Bifunctional Catalyst for Electrochemical and Photoelectrochemical Water Oxidation

Abstract

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Keywords

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